68 lines
2.2 KiB
Text
68 lines
2.2 KiB
Text
type crash_dump, domain;
|
|
type crash_dump_exec, system_file_type, exec_type, file_type;
|
|
|
|
# crash_dump might inherit CAP_SYS_PTRACE from a privileged process,
|
|
# which will result in an audit log even when it's allowed to trace.
|
|
dontaudit crash_dump self:global_capability_class_set { sys_ptrace };
|
|
|
|
userdebug_or_eng(`
|
|
allow crash_dump logd:process { ptrace signal sigchld sigstop sigkill };
|
|
|
|
# Let crash_dump write to /dev/kmsg_debug crashes that happen before logd comes up.
|
|
allow crash_dump kmsg_debug_device:chr_file { open append };
|
|
')
|
|
|
|
# Use inherited file descriptors
|
|
allow crash_dump domain:fd use;
|
|
|
|
# Read/write IPC pipes inherited from crashing processes.
|
|
allow crash_dump domain:fifo_file { read write };
|
|
|
|
# Append to pipes given to us by processes requesting dumps (e.g. dumpstate)
|
|
allow crash_dump domain:fifo_file { append };
|
|
|
|
r_dir_file(crash_dump, domain)
|
|
allow crash_dump exec_type:file r_file_perms;
|
|
|
|
# Read /data/dalvik-cache.
|
|
allow crash_dump dalvikcache_data_file:dir { search getattr };
|
|
allow crash_dump dalvikcache_data_file:file r_file_perms;
|
|
|
|
# Read APK files.
|
|
r_dir_file(crash_dump, apk_data_file);
|
|
|
|
# Read all /vendor
|
|
r_dir_file(crash_dump, { vendor_file same_process_hal_file })
|
|
|
|
# Talk to tombstoned
|
|
unix_socket_connect(crash_dump, tombstoned_crash, tombstoned)
|
|
|
|
# Talk to ActivityManager.
|
|
unix_socket_connect(crash_dump, system_ndebug, system_server)
|
|
|
|
# Append to ANR files.
|
|
allow crash_dump anr_data_file:file { append getattr };
|
|
|
|
# Append to tombstone files.
|
|
allow crash_dump tombstone_data_file:file { append getattr };
|
|
|
|
# crash_dump writes out logcat logs at the bottom of tombstones,
|
|
# which is super useful in some cases.
|
|
unix_socket_connect(crash_dump, logdr, logd)
|
|
|
|
# Crash dump is not intended to access the following files. Since these
|
|
# are WAI, suppress the denials to clean up the logs.
|
|
dontaudit crash_dump {
|
|
core_data_file_type
|
|
vendor_file_type
|
|
}:dir search;
|
|
dontaudit crash_dump system_data_file:{ lnk_file file } read;
|
|
dontaudit crash_dump property_type:file read;
|
|
|
|
###
|
|
### neverallow assertions
|
|
###
|
|
|
|
# A domain transition must occur for crash_dump to get the privileges needed to trace the process.
|
|
# Do not allow the execution of crash_dump without a domain transition.
|
|
neverallow domain crash_dump_exec:file execute_no_trans;
|